UI graph shows black windows in chrome Version 19.0.1084.56

Cluster information:

• 11 centos 6.2 64bit server with 4 cores CPU
• Each server has 10 GB RAM and 150 GB disk.
• 8 GB RAM for couchbase server at each node (80% total system memmories)
• Disk format ext3 on both data and root
• Each server has its own drive, no disk sharing with other server.
• Load 9 million items to both buckets
• Initial indexing, so cpu a little heavy load
• Cluster has 2 buckets, default (3GB) and saslbucket (3GB)
• Each bucket has one doc and 2 views for each doc (default d1 and saslbucket d11)

• Create cluster with 10 nodes installed couchbase server 2.0.0-1708

10.3.121.13
10.3.121.14
10.3.121.15
10.3.121.16
10.3.121.17
10.3.121.20
10.3.121.22
10.3.121.24
10.3.121.25
10.3.121.23

• Data path /data
• View path /data

Failover node 13 (due to almost ran out of disk space) and rebalance.
Rebalance failed (MB-6573 and MB-6595)

Monitor the page in chrome and firefox. Graph in chome suddenly blank, then fuzzy and then black
UI graph in firefox version 15 works ok